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only 60% of certain kinds of seeds germinate when plated under normal conditions. support that twenty...

only 60% of certain kinds of seeds germinate when plated under normal conditions. support that twenty such seeds are planted, and X are denotes the number of those that will germinate

a. what is the probability distribution of X

b. what is the probability that at least fifteen of these seeds will germinate?

Math   Statistics-And-Probability   
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